Organizers of next Monday’s Boston Marathon announced this morning that four-time U.S. Olympian Abdi Abdirahman had withdrawn from the race due to the flu. This now leaves only two of the six 2012 U.S. Olympic marathoners — Shalane Flanagan and Kara Goucher — that were originally signed added to the field left.

The others withdrew from the race as follows:

Dec. 28, 2012: Desi Davila withdraws due to a “slow-healing femoral stress fracture of the right leg.”

March 13, 2013: Ryan Hall withdraws because he “missed crucial training due to a quadriceps strain.”

April 5, 2013: Meb Keflezighi pulls out due to “a persistent calf injury.”

April 10, 2013: Abdi Abdirahman drops out due to the flu

Organizers also said that Ukraine’s Tetiana Gamera-Shmyrko had also withdrawn because of an illness.

The revised race field is as follows, provided by John Hancock Financial — which manages and funds the race’s elite field: